Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

Pearson
Skills you'll gain: Containerization, Linux, Memory Management, Linux Commands, OS Process Management, File Systems, Operating Systems, Data Storage, Cloud Storage, Data Storage Technologies, General Networking, Network Administration, C (Programming Language), Git (Version Control System)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: User Accounts, File Systems, Linux Administration, User Provisioning, Linux, Operating System Administration, Authorization (Computing), Linux Servers, Operating Systems, File Management, Linux Commands, Software Installation, Systems Administration, System Software, Network Administration, Administration, Systems Design, System Requirements, Operations, Network Protocols
Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux Servers, Web Servers, Lightweight Directory Access Protocols, Email Security, Linux, Nginx, Apache, Dynamic Host Configuration Protocol (DHCP), Servers, Server Administration, Active Directory, System Configuration, Network Security, Firewall, Authentications, Software Installation
Advanced · Course · 1 - 3 Months

Pearson
Skills you'll gain: Firewall, Authorization (Computing), Security Controls, Linux, Authentications, Encryption
Intermediate · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Hardening, Remote Access Systems, Linux Servers, Linux Administration, Linux, Authentications, Software Installation
Beginner · Course · 1 - 4 Weeks

Illinois Tech
Skills you'll gain: Microsoft Windows, Operating Systems, System Configuration, Firewall, Linux, System Monitoring, System Support, Authorization (Computing), Data Security
★ 4.8 (28) · Intermediate · Course · 1 - 4 Weeks

Edureka
Skills you'll gain: OSI Models, Linux Administration, Network Troubleshooting, Linux, Linux Commands, Network Administration, Linux Servers, Hardening, Network Monitoring, General Networking, Remote Access Systems, Network Performance Management, Network Protocols, TCP/IP, Network Security, Firewall, Security Controls, Network Analysis, Authentications
Advanced · Course · 1 - 4 Weeks

Skills you'll gain: General Networking, Security Controls, Service Management
Intermediate · Course · 1 - 3 Months

LearnQuest
Skills you'll gain: Virtual Private Networks (VPN), Linux Administration, Public Key Infrastructure, Linux, Intrusion Detection and Prevention, Firewall, Authentications, Authorization (Computing), Network Security, Security Controls, Cybersecurity, Information Technology
★ 4.5 (112) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Ubuntu, Command-Line Interface, Package and Software Management, Hardening, Linux Administration, Linux, Software Installation, Network Security, System Configuration, Linux Commands, Patch Management, Open Source Technology, Operating System Administration, Cloud-Native Computing, Containerization, Systems Administration, System Support, Jupyter, DevOps, Administration
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Penetration Testing, Vulnerability Assessments, Vulnerability Scanning, Metasploit, Exploitation techniques, Cyber Security Assessment, Security Testing, Cybersecurity, Human Factors (Security), Risk Mitigation, Threat Modeling, Active Directory, Application Security, Test Tools, Authentications, Network Security, Authorization (Computing), Web Applications, Remote Access Systems, Linux
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, Cyber Security Assessment, Vulnerability Scanning, Cybersecurity, Vulnerability Assessments, Network Analysis, Linux, System Configuration, Virtual Machines, Operating Systems, Workflow Management
★ 4.8 (32) · Mixed · Course · 1 - 4 Weeks